21148568

素因数分解:

$2^3\times 7^1\times {\mathrm{377653}}^1$

素因数の和:377666

約数の個数: 16

約数和(自身を含む): 45318480

約数和(自身を除く): 24169912

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 377653, 755306, 1510612, 2643571, 3021224, 5287142, 10574284, 21148568]

約数ペア:

[(1, 21148568), (2, 10574284), (4, 5287142), (7, 3021224), (8, 2643571), (14, 1510612), (28, 755306), (56, 377653)]